SIMPLE MACHINES MAKING WORK EASIER! LEVER PULLEY WHEEL AND AXLE INCLINED PLANE SCREW WEDGE SIMPLE MACHINES SIMPLE MACHINES SIMPLE MACHINES ARE DEVICES THAT HELP US DO WORK SIMPLE MACHINES ARE DEVICES THAT HELP US DO WORK SIMPLE MACHINES DO NOT HAVE ENERGY SOURCES OF THEIR OWN SIMPLE MACHINES DO NOT HAVE ENERGY SOURCES OF THEIR OWN SIMPLE MACHINES DO NOT DO ANY WORK BY THEMSELVES SIMPLE MACHINES DO NOT DO ANY WORK BY THEMSELVES SIMPLE MACHINES SIMPLY TRANSFER WORK DONE BY A HUMAN TO SOMETHING ELSE SIMPLE MACHINES SIMPLY TRANSFER WORK DONE BY A HUMAN TO SOMETHING ELSE ADVANTAGES OF USING SIMPLE MACHINES ADVANTAGES OF USING SIMPLE MACHINES SIMPLE MACHINES CAN CHANGE THE AMOUNT OF FORCE REQUIRED TO DO WORK. SIMPLE MACHINES CAN CHANGE THE AMOUNT OF FORCE REQUIRED TO DO WORK. SIMPLE MACHINES CAN CHAGES THE DISTANCE THROUGH WHICH THE FORCE ACTS OR THE DIRECTION IN WHICH IT ACTS. SIMPLE MACHINES CAN CHAGES THE DISTANCE THROUGH WHICH THE FORCE ACTS OR THE DIRECTION IN WHICH IT ACTS. SIMPLE MACHINES ALLOW HUMANS TO DO THINGS THAT THEY OTHERWISE MIGHT NOT BE ABLE TO DO. SIMPLE MACHINES ALLOW HUMANS TO DO THINGS THAT THEY OTHERWISE MIGHT NOT BE ABLE TO DO. THE WEDGE THE WEDGE THE WEDGE IS A MOVING INCLINED PLANE THE WEDGE IS A MOVING INCLINED PLANE INCLINED PLANE USED AS A WEDGE INCLINED PLANE AT REST CHOPING WOOD IS AN EXAMPLE OF USING AN INCLINED PLANE AS A WEDGE THE SCREW THE SCREW THE SCREW IS AN INCLINED PLANE WRAPPED AROUND A SHAFT THE SCREW IS AN INCLINED PLANE WRAPPED AROUND A SHAFT SHAFT SCREWS WITHOUT AN INCLINED PLANE WRAPPED AROUND A SHAFT, WE WOULD NOT BE ABLE TO EASILY FORCE A SHAFT INTO MATERIALS LIKE WOOD OR METAL. SCREWS MAKE WORK MUCH EASIER! THE WHEEL AND AXLE THE WHEEL AND AXLE THE WHEEL AND AXLE IS AN OFTEN MISUNDERSTOOD SIMPLE MACHINE THE WHEEL AND AXLE IS AN OFTEN MISUNDERSTOOD SIMPLE MACHINE IT IS BASICALLY A LEVER THAT CAN MOVE IN A CIRCLE IT IS BASICALLY A LEVER THAT CAN MOVE IN A CIRCLE THE STEERING WHEEL IN A CAR AND THE SHAFT IT IS ATTACHED TO IS AN EXAMPLE OF A WHEEL AND AXLE THE WHEEL MUST BE ATTACHED TO THE SHAFT(AXLE) TO TRANSFER FORCE TO IT! WHEEL AND AXLE THE LEVER THE LEVER A LEVER IS A BAR THAT CAN REST ON AND TURN AROUND A SUPPORT CALED A FULCRUM. A LEVER IS A BAR THAT CAN REST ON AND TURN AROUND A SUPPORT CALED A FULCRUM. THE FORCE YOU APPLY TO ONE PART OF THE LEVER IS CALLED THE EFFORT THE FORCE YOU APPLY TO ONE PART OF THE LEVER IS CALLED THE EFFORT THE WEIGHT THAT IS LIFTED OR THE RESISTANCE THAT IS OVERCOME IS CALLED THE LOAD. THE WEIGHT THAT IS LIFTED OR THE RESISTANCE THAT IS OVERCOME IS CALLED THE LOAD. EFFORT LOAD FULCRUM LEVER THE PULLEY THE PULLEY THE PULLEY IS A GROOVED WHEEL WITH A ROPE OR CABLE AROUND IT THE PULLEY IS A GROOVED WHEEL WITH A ROPE OR CABLE AROUND IT PULLEYS HELP US DO WORK BY MOVING OBJECTS UP, DOWN, OR ACROSS. PULLEYS HELP US DO WORK BY MOVING OBJECTS UP, DOWN, OR ACROSS. GROOVED WHEELS SINGLE PULLY PULLEY ON A SHIP WHEN THE EFFORT IS PULLED IN ONE DIRECTION THE LOAD GOES IN THE OTHER DIRECTION EFFORT LOAD THE INCLINED PLANE THE INCLINED PLANE THE INCLINED PLANE IS A SLANTING SURFACE CONNECTING A LOWER LEVEL TO A HIGHER LEVEL THE INCLINED PLANE IS A SLANTING SURFACE CONNECTING A LOWER LEVEL TO A HIGHER LEVEL THE SLIDE IS A MODIFIED INCLINED PLANE COMMERCIAL RAMP FOR MOVING HEAVY BOXES INTO A TRUCK THE REMAINING SLIDES ARE A QUIZ THE REMAINING SLIDES ARE A QUIZ ENJOY! SIMPLE MACHINES QUIZ SIMPLE MACHINES QUIZ QUESTION : QUESTION : A STIFF BAR THAT RESTS ON A SUPPORT CALLED A FULCRUM IS CALLED A(N) A STIFF BAR THAT RESTS ON A SUPPORT CALLED A FULCRUM IS CALLED A(N) A: SCREW A: SCREW B: INCLINED PLANE B: INCLINED PLANE C: LEVER C: LEVER D: WEDGE D: WEDGE SIMPLE MACHINES QUIZ SIMPLE MACHINES QUIZ QUESTION: QUESTION: A SLANTING SURFACE CONNECTING A LOWER LEVEL TO A HIGHER LEVEL IS CALLED A(N) A SLANTING SURFACE CONNECTING A LOWER LEVEL TO A HIGHER LEVEL IS CALLED A(N) A: INCLINED PLANE B: PULLEY C: SCREW D:WHEEL AND AXEL SIMPLE MACHINES QUIZ SIMPLE MACHINES QUIZ QUESTION: QUESTION: A WHEEL WITH A ROD THROUGH ITS CENTER; BOTH PARTS MOVING TOGETHER IS CALLED A(N) A WHEEL WITH A ROD THROUGH ITS CENTER; BOTH PARTS MOVING TOGETHER IS CALLED A(N) A: LEVER B: WEDGE C: PULLEY D: WHEEL AND AXEL SIMPLE MACHINES QUIZ SIMPLE MACHINES QUIZ QUESTION: QUESTION: AN INCLINED PLANE WRAPPED AROUND A ROD OR POLE IS CALLED A(N) AN INCLINED PLANE WRAPPED AROUND A ROD OR POLE IS CALLED A(N) A: PULLEY B: SCREW C: WEDGE D: LEVER SIMPLE MACHINES QUIZ SIMPLE MACHINES QUIZ QUESTION: QUESTION: A GROOVED WHEEL WITH A ROPE OR CABLE AROUND IT IS CALLED A(N) A GROOVED WHEEL WITH A ROPE OR CABLE AROUND IT IS CALLED A(N) A: WEDGE B: INCLINED PLANE C: PULLEY D: WHEEL AND AXEL SIMPLE MACHINES QUIZ SIMPLE MACHINES QUIZ QUESTION: QUESTION: AN OBJECT WITH AT LEAST ONE SLANTING SIDE ENDING IN A SHARP EDGE IS CALLED A(N) AN OBJECT WITH AT LEAST ONE SLANTING SIDE ENDING IN A SHARP EDGE IS CALLED A(N) A: PULLEY B: SCREW C: WHEEL AND AXEL D: WEDGE SIMPLE MACHINE PICTURE QUIZ WHAT SIMPLE MACHINE IS THIS? WHAT SIMPLE MACHINE IS THIS? BIKE HANDLEBAR LEVER LEVER SIMPLE MACHINE PICTURE QUIZ WHAT SIMPLE MACHINE IS THIS? WHAT SIMPLE MACHINE IS THIS? INCLINED PLANE INCLINED PLANE SIMPLE MACHINE PICTURE QUIZ WHAT SIMPLE MACHINE IS THIS? WHAT SIMPLE MACHINE IS THIS? WHEEL AND AXEL WHEEL AND AXEL SIMPLE MACHINE PICTURE QUIZ WHAT SIMPLE MACHINE IS THIS? WHAT SIMPLE MACHINE IS THIS? SCREW SCREW SIMPLE MACHINE PICTURE QUIZ WHAT SIMPLE MACHINE IS THIS? WHAT SIMPLE MACHINE IS THIS? PULLEY PULLEY SIMPLE MACHINE PICTURE QUIZ WHAT SIMPLE MACHINE IS THIS? WHAT SIMPLE MACHINE IS THIS? LEVER LEVER SIMPLE MACHINE PICTURE QUIZ WHAT SIMPLE MACHINE IS THIS? WHAT SIMPLE MACHINE IS THIS? WEDGE WEDGE SIMPLE MACHINE PICTURE QUIZ WHAT SIMPLE MACHINE IS THIS? WHAT SIMPLE MACHINE IS THIS? WHEEL AND AXEL WHEEL AND AXEL SIMPLE MACHINE PICTURE QUIZ WHAT SIMPLE MACHINE IS THIS? WHAT SIMPLE MACHINE IS THIS? WEDGE WEDGE SIMPLE MACHINE PICTURE QUIZ WHAT SIMPLE MACHINE IS THIS? WHAT SIMPLE MACHINE IS THIS? THIS PART SCREW SCREW SIMPLE MACHINE PICTURE QUIZ WHAT SIMPLE MACHINE IS THIS? WHAT SIMPLE MACHINE IS THIS? INCLINED PLANE INCLINED PLANE SIMPLE MACHINE PICTURE QUIZ WHAT SIMPLE MACHINE IS THIS? WHAT SIMPLE MACHINE IS THIS? PULLEY PULLEY THE END OF THE PICTURE QUIZ THE END OF THE PICTURE QUIZ CLICK ON THE VIDEO BELOW TO WATCH A VIDEO ABOUT THE INCLINED PLANE, WEDGE, AND SCREW CLICK ON THE VIDEO BELOW TO WATCH A VIDEO ABOUT THE LEVER, WHEEL AND AXEL, AND PULLEY. Can you name the simple machines in this picture? Can you find the simple machines in this picture?